package com.project.dao.Impl;

import java.sql.*;

public class BaseDao {
    //连接对象
    protected Connection con;
    //sql语句执行对象
    protected PreparedStatement ps;
    //结果集
    protected ResultSet rs;

    public void setConnection() {

        try {
            Class.forName("com.mysql.jdbc.Driver");
            con = DriverManager.getConnection("jdbc:mysql://localhost:6789/db?characterEncoding=utf-8",
                    "root", "lovo");

        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public void close() {
        try {
            if (rs != null) {
                rs.close();
            }
            if (ps != null) {
                ps.close();
            }
            if (con != null) {
                con.close();
            }
        } catch (SQLException e) {
            throw new RuntimeException(e);
        }

    }
}
